Home / 71,987.31-99,325.58-43,687.53

Finding the Fourth Proportional to 71,987.31, 99,325.58 and 43,687.53

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Solution

The fourth proportional to 71,987.31, 99,325.58 and 43,687.53 is: 60,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,987.31 : 99,325.58 = 43,687.53 : x
  2. Step 2: Convert to fraction form
    71,987.31/99,325.58 = 43,687.53/x
  3. Step 3: Cross multiply
    71,987.31x = 99,325.58 × 43,687.53
  4. Step 4: Simplify right side
    71,987.31x = 4,339,289,037.58
  5. Step 5: Solve for x
    x = 4,339,289,037.58/71,987.31
  6. Step 6: Final answer
    x = 60,278.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.